Analog Devices DAC312 Datasheet

12-Bit High Speed Multiplying

a

FEATURES
Differential Nonlinearity: 61/2 LSB
Nonlinearity: 0.05%
Fast Settling Time: 250 ns
High Compliance: –5 V to +10 V
Differential Outputs: 0 to 4 mA
Guaranteed Monotonicity: 12 Bits
Low Full-Scale Tempco: 10 ppm/8C
Circuit Interface to TTL, CMOS, ECL, PMOS/NMOS
Low Power Consumption: 225 mW
Industry Standard AM6012 Pinout
Available In Die Form

GENERAL DESCRIPTION

The DAC312 series of 12-bit multiplying digital-to-analog con­verters provide high speed with guaranteed performance to

0.012% differential nonlinearity over the full commercial oper­ating temperature range.

The DAC312 combines a 9-bit master D/A converter with a
3-bit (MSBs) segment generator to form an accurate 12-bit D/A
converter at low cost. This technique guarantees a very uniform
step size (up to ±1/2 LSB from the ideal), monotonicity to
12-bits and integral nonlinearity to 0.05% at its differential cur­rent outputs. In order to provide the same performance with a
12-bit R-2R ladder design, an integral nonlinearity over tem­perature of 1/2 LSB (0.012%) would be required.

The 250 ns settling time with low glitch energy and low power
consumption are achieved by careful attention to the circuit de­sign and stringent process controls. Direct interface with all
popular logic families is achieved through the logic threshold
terminal.

FUNCTIONAL BLOCK DIAGRAM

D/A Converter

DAC312

PIN CONNECTIONS

20-Pin Hermetic DIP (R-Suffix),

20-Pin Plastic DIP (P-Suffix),

20-Pin SOL (S-Suffix)

High compliance and low drift characteristics (as low as
10 ppm/°C) are also features of the DAC312 along with an ex­cellent power supply rejection ratio of ± .001% FS/%∆V. Oper­ating over a power supply range of +5/–11 V to ± 18 V the
device consumes 225 mW at the lower supply voltages with an
absolute maximum dissipation of 375 mW at the higher supply
levels.

With their guaranteed specifications, single chip reliability and
low cost, the DAC312 device makes excellent building blocks
for A/D converters, data acquisition systems, video display driv­ers, programmable test equipment and other applications where
low power consumption and complete input/output versatility
are required.

REV. C

Information furnished by Analog Devices is believed to be accurate and
reliable. However, no responsibility is assumed by Analog Devices for its
use, nor for any infringements of patents or other rights of third parties
which may result from its use. No license is granted by implication or
otherwise under any patent or patent rights of Analog Devices.

© Analog Devices, Inc., 1996

One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A.
Tel: [phone] Fax: [phone]

DAC312–SPECIFICA TIONS

(@ VS = 615 V, I

= 1.0 mA, 08C ≤ TA ≤ +708C for DAC312E and –408C ≤ TA ≤ +858C

REF

for DAC312F, DAC312H, unless otherwise noted. Output characteristics refer

ELECTRICAL CHARACTERISTICS

Parameter Symbol Conditions Min Typ Max Min Typ Max Min Typ Max Units

Resolution 12 12 12 Bits
Monotonicity 12 12 12 Bits
Differential Nonlinearity DNL Deviation from Ideal ±0.0125 ±0.0250 ±0.0250 %FS

Nonlinearity INL Deviation from Ideal ±0.05 ± 0.05 ± 0.05 %FS

Full-Scale Current I

Full-Scale Tempco TCI

FS

FS

2

Step Size

Straight Line
V

= 10 V

REF

= R

= 10 kΩ

R

14

15

1

to both I

2

and I

OUT

DAC312E DAC312F DAC312H

3.967 3.999 4.031 3.935 3.999 4.063 3.935 3.999 4.063 mA

± 5 ± 20 ±10 ±40 ±80 ppm/°C
± 0.005 ± 0.002 ±0.001 ± 0.004 ±0.008 %FS/°C

.)

OUT

±0.5 ±1 ±1 LSB

Output Voltage Compliance V

Full-Scale Symmetry I
Zero-Scale Current I
Settling Time t

Propagation Delay–All Bits t

Output Resistance R
Output Capacitance C
Logic Input

Levels “0” V

Levels “1” V
Logic Input Current I
Logic Input Swing V
Reference Bias Current I
Reference Input

Slew Rate dl/dt R
Power Supply Sensitivity PSSI

Power Supply Range V+ V

Power Supply Current I+ V+ = +5 V, V– = –15 V 3.3 7 3.3 7 3.3 7 mA

Power Dissipation P

OC

FSS
ZS
S

PLH

t

PHL

O
OUT

IL
IH

IN

IS

15

FS+

PSSI

FS–

V– V

I– V+ = +15 V, V– = –15 V –13.9 –18 –13.9 –18 –13 9 –18 mA
I+ V+ = +5 V, V– = –15 V 3.9 7 3.9 7 3.9 7 mA
I– V+ = +15 V, V– = –15 V –13.9 –18 –13.9 –18 –13.9 –18 mA

d

DNL Specification Guaran­teed over Compliance Range –5 +10 –5 +10 –5 +10 V
|IFS|–|IFS| ± 0.4 ± 1 ±0.4 ±2 ± 0.4 ± 2 µA

To ± 1/2 LSB, All Bits
Switched ON or OFF
All Bits Switched 50% Point 25 50 25 50 25 50 ns
Logic Swing to 50% Point 25 50 25 50 25 50 ns

1

Output

V

= GND 0.8 0.8 0.8 V

LC

VLC = GND 2 2 2 V
VIN = –5 to +18 V 40 40 40 µA

= 800 Ω, CC = 0 pF14 8 48 48 mA/µs

14(eq)

V+ = +13.5 V to +16.5 V,
V– = –15 V ±0.0005 ±0.001 ±0.0005 ±0.001 ± 0.0005 ±0.001 %FS/%∆V
V– = –13.5 V to –16.5 V,
V+ = +15 V ±0.00025 ±0.001 ±0.00025 ±0.001 ±0.00025 ±0.001 %FS/%∆V

= 0 V 4.5 18 4.5 18 4.5 18 V

OUT

= 0 V –18 –10.8 –18 –10.8 –18 –10.8 V

OUT

V+ = +5 V, V– = –15 V 225 305 225 305 225 305 mW
V+ = +15 V, V– = –15 V 267 375 267 375 267 375 mW

1

250 500 250 500 250 500 ns

>10 >10 >10 MΩ
20 20 20 pF

–5 +18 –5 +18 –5 +18 V
0 –0.5 –2 0 –0.5 –2 0 –0.5 –2 µA

0.10 0.10 0.10 µA

TYPICAL ELECTRICAL CHARACTERISTICS

characteristics refer to both I

OUT

and I

OUT

.

@ 258C; VS = 615 V, and I

= 1.0 mA, unless otherwise noted. Output

REF

DAC312N DAC312G

Parameter Symbol Conditions Typical Typical Units

Reference Input

Slew Rate dl/dt 8 8 mA/µs
Propagation Delay t
Settling Time t

PLH

S

, t

PHL

Any Bit 25 25 ns
To ±1/2 LSB, All

Bits Switched ON 250 250 ns
or OFF.

Full-Scale TC

IFS

±10 ±10 ppm/°C

–2–

REV. C

DAC312

ELECTRICAL CHARACTERISTICS

DAC312F, DAC312H, unless otherwise noted. Output characteristics refer to both I

@ VS = 615 V, I

= 1.0 mA, 08C ≤ TA ≤ 708C for DAC312E and –408C ≤ TA ≤ +858C for

REF

OUT

and I

.

Continued

OUT

DAC312E DAC312F DAC312H

Parameter Symbol Conditions Min Typ Max Min Typ Max Min Typ Max Units

Logic Input

Levels “0” V

IL

V

= GND 0.8 0.8 0.8 V

LC

Logic Input

Levels “1” V

IH

VLC = GND 2 2 2 V

Logic Input

Current I

IN

VIN = –5 V to +18 V 40 40 40 µA

Logic Input

Swing V

IS

–5 +18 –5 +18 –5 +18 V

Reference Bias

Current I

15

Reference Input dl/dt R

= 800 Ω 4 8 4 8 4 8 mA/µs

14(eq)

0 –0.5 –2 0 –0.5 –2 0 –0.5 –2 µA

Slew Rate CC = 0 pF (Note 1)

V+ = +13.5 V to +16.5 V, ±0.0005 ±0.001 ±0.0005 ± 0.001 ±0.0005 ±0.001 %FS/%∆V

Power Supply PSSI

Sensitivity PSSI

V– = –15 V

FS+

V– = –13.5 V to –16.5 V, ±0.00025 ±0.001 ±0.00025 ±0.001 ±0.00025 ±0.001 %FS/%∆V

FS–

V+ = +15 V

Power Supply V+ 4.5 18 4.5 18 4.5 18

Range V– V

= 0 V –18 –10.8 –18 –10.8 –18 –10.8 V

OUT

I+ 3.3 7 3.3 7 3.3 7

Power Supply I– V+ = +5 V, V– = –15 V –13.9 –18 –13.9 –18 –13.9 –18

Current I+ V+ = +15 V, V– = –15 V 3.9 7 3.9 7 3.9 7 mA

I– –13.9 –18 –13.9 –18 –13.9 –18

Power V+ = +5 V, V– = –15 V 225 305 225 305 225 305

Dissipation P

NOTES

1

Guaranteed by design.

2

TA = +25°C for DAC312H grade only.

Specifications subject to change without notice.

d

V+ = +15 V, V– = –15 V 267 375 267 375 267 375 mW

REV. C

–3–

DAC312

WAFER TEST LIMITS

@ VS = 615 V, I

= 1.0 mA, TA = 258C, unless otherwise noted. Output characteristics refer to both I

REF

OUT

and I

OUT

.

DAC312N DAC312G

Parameter Symbol Conditions Limit Limit Units

Resolution 12 12 Bits min
Monotonicity 12 12 Bits min
Nonlinearity ±0.05 ± 0.05 %FS max
Output Voltage Full-Scale Current +10 +10 V max

Compliance Voc Change <1/2 LSB –5 –5 V min

Full-Scale V

= 10.000 V 4.031 4.063 mA max

REF

Current R14, R15 = 10.000 kΩ 3.967 3.935 mA min
Full-Scale Symmetry I
Zero-Scale Current I

FSS

ZS

±1 ±2 µA max

0.1 0.1 µA max

Differential DNL Deviation from ±0.012 ±0.025 %FS max

Nonlinearity Ideal Step Size ±1/2 ±1 Bits (LSB) max
Logic Input Levels “0” V
Logic Input Levels “1” V
Logic Input Swing V

IL

IH

IS

VLC = GND 0.8 0.8 V max
VLC = GND 2 2 V min

+18 +18 V max
–5 –5 V min

Reference Bias

Current I
Power Supply PSSI

Sensitivity PSSI
Power Supply I+ V

Current I– I
Power V

Dissipation P

NOTE
Electrical tests are performed at wafer probe to the limits shown. Due to variations in assembly methods and normal yield loss, yield after packaging is not guaranteed
for standard product dice. Consult factory to negotiate specifications based on dice lot qualification through sample lot assembly and testing.

15

FS+
FS–

D

V+ = +13.5 V to +16.5 V, V– = –15 V ±0.001 ±0.001
V– = –13.5 V to –16.5 V, V+ = +15 V ±0.001 ±0.001 %/%max

= +15 V 7 7

S

≤ 1.0 mA –18 –18 mA max

REF

= +15 V

S

I

≤ 1.0 mA 375 375 mW max

REF

–2 –2 µA max

DICE CHARACTERISTICS

DIE SIZE 0.141 × 0.096 inch, 13,536 sq. mils (3.58 × 2.44 mm, 8.74 sq. mm)

1. B1 (MSB) 11. B11

2. B2 12. B12 (LSB)

3. B3 13. V

4. B4 14. V

5. B5 15. V

LC/AGND

(+)

REF

(–)

REF

6. B6 16. COMP

7. B7 17. V–

8. B8 18. I

9. B9 19. I

O
O

10. B10 20. V+

–4–

REV. C

DAC312

WARNING!

ESD SENSITIVE DEVICE

ABSOLUTE MAXIMUM RATINGS

Operating Temperature

DAC312E . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0°C to +70°C

DAC312F, DAC312H . . . . . . . . . . . . . . . . . . –40°C to +85°C

Junction Temperature . . . . . . . . . . . . . . . . . . . . –65°C to +150°C

Storage Temperature (Tj) . . . . . . . . . . . . . . . . . –65°C to +125°C

Lead Temperature (Soldering, 60 sec) . . . . . . . . . . . . . . . .300°C

Power Supply Voltage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ±18 V

Logic Inputs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . –5 V to +18 V

Analog Current Outputs . . . . . . . . . . . . . . . . . . . . –8 V to +12 V

Reference Inputs V

, V15 . . . . . . . . . . . . . . . . . . . . . . . V– to V+

14

Reference Input Differential Voltage (V
Reference Input Current (I

) . . . . . . . . . . . . . . . . . . . . . 1.25 mA

14

Package Type u

1

Model DNL Range Description Option

DAC312ER2±1/2 LSB 0°C to +70°C Cerdip-20 Q-20
DAC312FR ±1 LSB –40°C to +85°C Cerdip-20 Q-20
DAC312BR/883 ± 1 LSB –55°C to +125°C Cerdip-20 Q-20
DAC312HP ± 1 LSB –40°C to +85°C Plastic DIP-20 N-20
DAC312HS ± 1 LSB –40°C to +85°C SOL-20 R-20

NOTES

1

, V15) . . . . . . . . . . ±18 V

14

2

JA

u

JC

Units

Burn-in is available on commercial and industrial temperature range parts in
cerdip, plastic DIP, and TO-can packages.

2

For devices processed in total compliance to MIL-STD-883, add/883 after part
number. Consult factory for 883 data sheet.

ORDERING GUIDE

Temperature Package Package

20-Pin Hermetic DIP (R) 76 11 °C/W
20-Pin Plastic DIP (P) 69 27 °C/W

20-Pin SOL (S) 88 25 °C/W

NOTES

1

Absolute maximum ratings apply to both DICE and packaged parts, unless
otherwise noted.

2

θJA is specified for worst case mounting conditions, i.e., θJA is specified for device

in socket for cerdip and P-DIP packages; θJA is specified for device soldered to
printed circuit board for SOL package.

CAUTION

ESD (electrostatic discharge) sensitive device. Electrostatic charges as high as 4000 V readily
accumulate on the human body and test equipment and can discharge without detection.
Although the DAC312 features proprietary ESD protection circuitry, permanent damage may
occur on devices subjected to high energy electrostatic discharges. Therefore, proper ESD
precautions are recommended to avoid performance degradation or loss of functionality.

1

REV. C

–5–